package com.hll.api.generate;

import com.baomidou.mybatisplus.core.exceptions.MybatisPlusException;
import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.*;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

/**
 * @author Administrator
 * @create 2019-06-25 21:08
 */
public class CodeGenerator {


    /**
     * <p>
     * 读取控制台内容
     * </p>
     */
    private static String scanner(String tip) {
        Scanner scanner = new Scanner( System.in );
        System.out.println( ("请输入" + tip + "：") );
        if (scanner.hasNext()) {
            String ipt = scanner.next();
            if (StringUtils.isNotEmpty( ipt )) {
                return ipt;
            }
        }
        throw new MybatisPlusException( "请输入正确的" + tip + "！" );
    }

    public static void main(String[] args) {
        // 代码生成器
        AutoGenerator mpg = new AutoGenerator();

        // 全局配置
        GlobalConfig gc = new GlobalConfig();
        String projectPath = System.getProperty( "user.dir" );
        gc.setOutputDir( projectPath + "/src/main/java" );
        gc.setAuthor( "何龙" );
        gc.setOpen( false );
        // gc.setSwagger2(true); 实体属性 Swagger2 注解
        mpg.setGlobalConfig( gc );

        // 数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl( "jdbc:mysql://39.107.253.13:3306/myapi?useUnicode=true&characterEncoding=utf-8&useSSL=false" );
        // dsc.setSchemaName("public");
        dsc.setDriverName( "com.mysql.jdbc.Driver" );
        dsc.setUsername( "root" );
        dsc.setPassword( "123456" );
        mpg.setDataSource( dsc );

        // 包配置
        PackageConfig pc = new PackageConfig();
        pc.setModuleName( scanner( "模块名" ) );
        pc.setParent( "com.hll.api" );
        mpg.setPackageInfo( pc );

        // 自定义配置
        InjectionConfig cfg = new InjectionConfig() {
            @Override
            public void initMap() {
                // to do nothing
            }
        };

        // 如果模板引擎是 freemarker
        String templatePath = "/templates/mapper.xml.ftl";

        // 自定义输出配置
        List<FileOutConfig> focList = new ArrayList<>();
        // 自定义配置会被优先输出
        focList.add( new FileOutConfig( templatePath ) {
            @Override
            public String outputFile(TableInfo tableInfo) {
                // 自定义输出文件名 ， 如果你 Entity 设置了前后缀、此处注意 xml 的名称会跟着发生变化！！
                return projectPath + "/src/main/resources/mapper/" + pc.getModuleName()
                        + "/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
            }
        } );
        cfg.setFileOutConfigList( focList );
        mpg.setCfg( cfg );

        // 配置模板
        TemplateConfig templateConfig = new TemplateConfig();

        templateConfig.setXml( null );
        mpg.setTemplate( templateConfig );

        // 策略配置
        StrategyConfig strategy = new StrategyConfig();
        strategy.setNaming( NamingStrategy.underline_to_camel );
        strategy.setColumnNaming( NamingStrategy.underline_to_camel );
        strategy.setEntityLombokModel( true );
        strategy.setRestControllerStyle( true );
        strategy.setInclude( scanner( "表名，多个英文逗号分割" ).split( "," ) );
        strategy.setControllerMappingHyphenStyle( true );
        strategy.setTablePrefix( pc.getModuleName() + "_" );
        mpg.setStrategy( strategy );
        mpg.setTemplateEngine( new FreemarkerTemplateEngine() );
        mpg.execute();
    }

}